Pneumatic tire

Abstract

The outer diameter of the pneumatic tire is 350 mm or more and 600 mm or less, and the tire width is 125 mm or more and 255 mm or less. An aspect ratio of the pneumatic tire is 40% or more and 75% or less, a rim diameter of a rim wheel is 10 inches or more and 22 inches or less, and a rim width of the rim wheel is 3.8 inches or more and 8 inches or less. The pneumatic tire satisfies the relationship of 0.78≤RW/SW≤0.99 and 0.56≤RD/OD≤0.75. The carcass has a plurality of carcass cords arranged at intervals, the carcass cords are formed of prescribed organic fibers, and the breaking strength of the carcass cords is ≥2.2 kN/cm.

1 . A pneumatic tire having an annular carcass forming a tire skeleton and mounted on a vehicle, wherein
 an outer diameter OD of the pneumatic tire is 350 mm or more and 600 mm or less;   a tire width SW of the pneumatic tire is 125 mm or more and 255 mm or less;   an aspect ratio of the pneumatic tire is 40% or more and 75% or less;   a rim diameter RD of a rim wheel assembled to the pneumatic tire is 10 inches or more and 22 inches or less;   the rim width RW of the rim wheel is 3.8 inches or more and 8 inches or less, and   relations of:
   0.78≤ RW/SW≤ 0.99; and
 
   0.56≤ RD/OD≤ 0.75
 
   
       are satisfied, wherein
 the carcass has a plurality of carcass cords disposed at intervals, 
 the carcass cord is formed of a predetermined organic fiber, and 
 the breaking strength of the carcass cord is ≥2.2 kN/cm. 
 
     
     
         2 . The pneumatic tire according to  claim 1 , comprising:
 a tire side portion continuous to a tread in contact with a road surface and positioned inside in a tire radial direction of the tread; and   a bead portion continuous to the tire side portion and positioned inside in the tire radial direction of the tire side portion, wherein   the bead portion has an annular bead core,   the bead core is formed of a plurality of bead wires, and   the number of turns of the bead core is 20 or more.   
     
     
         3 . The pneumatic tire according to  claim 2 , wherein the bead wire has a diameter of 1.26 mm or more.